Tests weakCompareAndSet contend with strong compareAndSet.
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 212984 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 1.39067116124321E-309 | 496976 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 1.39067116124321E-309 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 139 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 1.39067116124321E-309 | 15371 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 1.39067116124321E-309 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server, -XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 104355 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 1.39067116124321E-309 | 284565 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 1.39067116124321E-309 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 253940 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 1.39067116124321E-309 | 742110 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 1.39067116124321E-309 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 99310 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 1.39067116124321E-309 | 307610 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 1.39067116124321E-309 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 54746 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 1.39067116124321E-309 | 1433664 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 1.39067116124321E-309 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 198317 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 1.39067116124321E-309 | 498963 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 1.39067116124321E-309 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 42974 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 1.39067116124321E-309 | 218246 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 1.39067116124321E-309 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |